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A truck moving with a speed of 25.4 m/s strikes a parked car. During the collision the truck and car stick together and slide to a stop together. The moving truck has a total mass of 2434 kg (including driver), and the parked car has a total mass of 1092.0 kg. The coefficient of sliding friction between the tires and the road is 0.520. How far does the truck/car combination slide? (in m)
A point charge q1 = 15.00 microC is held fixed in space. From a horizontal distance of 8.0cm, a small sphere with mass 4.00*10^-3 kg, What is the acceleration of the sphere at the instant
A physicist has developed a device that generates a beam of alpha particles (each of which is a helium nucleus, consisting of two protons, two neutrons, and no electrons).
A cylinder with a piston contains 0.250 mol of oxygen at 240000 pascal and 355 kelvin. The oxygen may be treated as an ideal gas. The gas first expands isobarically to twice its its original volume. It is y then compressed isothermally back to its..
Over a certain region of space, the electric potential is V = 4.2x-3.6x^2y+1.5yz^2. On scratch paper, What is the magnitude of the field at the point P
A spring has a force constant of 931N/m and an unstretched length of 8 cm. One end is attached to a post that is free to rotate in the center of a smooth table.
It takes the elevator in a skyscraper 4.5s to reach its cruising speed of 12m/s. What is the passenger's weight before the elevator starts moving
A thin, circular disc is made of lead and has a radius of 0.0350 cm at 20.0 °C. find out the change in the area of the circle if the temperature is increased to 625.0 °C. The coefficient of linear thermal expansion for lead is 29.0 x 10-6/C°.
The load and the spring are taken down. Two people pull in opposite directions on the ends of the spring, each with a force of 206 N. Find the length of the spring in this situation
The bonds pays interest semiannually on June 30 and December 31. The bonds are issued to yield 5%. Illustrate what are the proceeds from the bond issue?
2 blocks are sliding to the right across a horizontal surface. In case A, the mass of each block is 3.0 kg. Derive an expression for the contact force and acceleration
A uniform thin rod of mass 4.19 kg pivots about an axis through its center and perpendicular to its length. What must the length of the rod be so that the moment of inertia of the three-body system with respect to the described axis is 0.977 kg·m2
A laser beam of unknown wavelength passes through a diffraction grating having 5590lines/cm , At what angle will the next pair of bright spots occur
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